月表环境无线电波传播分段预测模型  

A New Segment Prediction Model for Radio Propagation over Lunar Surface

作　　者：朱秋明[1,2] 黄攀[1] 陈学强[1] 王成华[1] 王凤宇[3] 周生奎[1] 

机构地区：[1]南京航空航天大学电子信息工程学院,江苏南京210016 [2]中国空空导弹研究院,河南洛阳417009 [3]北京空间飞行器总体设计部,北京100094

出　　处：《四川大学学报（工程科学版）》2014年第2期116-120,共5页Journal of Sichuan University (Engineering Science Edition)

基　　金：国家自然科学基金资助项目(61172078);航空科学基金资助项目(20120152001);中央高校基本科研业务费专项资金资助(NZ2012012);博士后科学基金资助项目(2013M541661)

摘　　要：针对经典无线电波传播模型不适用于月球特殊的传播环境问题,提出一种月表环境下电波传播损耗分段预测模型。该模型首先建立包含自由空间段、月面反射段和月球绕射段的理想分段预测模型,并给出不同区间内传播损耗预测算法,然后考虑传播路径剖面上多重障碍物导致的额外损耗,以及其对分段区间参数的修正方法。将其应用于美国国家航天局提供的月表实际场景,仿真结果表明,该模型预测结果与"阿波罗"登月工程获得的实测数据非常吻合,可用于辅助月表无线通信系统的参数设计和性能评估。Most of the traditional radio models are invalid due to the special propagation environment on lunar. A novel path loss predic- tion method for lunar surface was proposed. Firstly, a theoretical segment model according to communication distance was established and three propagation scenarios were analyzed. Then the multiple isolated obstacles on propagating path were considered, which would not only lead to an additional transmission loss but＇also affect the segment parameters. The present method was applied on a real lunar surface scenario provided by National Aeronautics and Space Administration （NASA）. The simulation results showed that the predic- tion results are very close to measurements by Apollo project. This segment prediction model could he very useful on system parameters design and perforrdance analysis of lunar commtiiaication system.

关 键 词：传播损耗 预测模型 月表环境 布莱默级数 

分 类 号：TN927[电子电信—通信与信息系统]